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UNITED STATES PATENT orrion.

CHARLES E. REYNOLDS, OF NEW' YORK, N. Y.

WRENCH.

Specification of Letters Patent No. 31,826, dated March 26, 1861.

To all whom it may concern:

Be it known that I, CHARLES H. REYNOLDS, of the city, county, and Stateof New York, have invented a new and Improved Screw- Vrench; and I dohereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the annexed drawings,making a part of this specification, in which A Figure l is an externalview of my invention. Fig. 2, a longitudinal central section of thesame.

Similar letters of reference indicate corresponding parts in the twofigures.

This invention has for its object the facilitating of the adjustment ofthe wrench to the nut and also the obtaining of a firm hold of the jawsof the wrench on the nut so as to effectually prevent the slipping ofthe former on the latter. l

The invention consists in operating the movable or sliding jaw of thewrench by means of a rotating screw collar which is allowed a certaindegree of longitudinal play on the shank of the wrench, and is used inconnection with a handle secured to the shank of the wrench by a jointor pin and so arranged as to perform the function of a lever and actupon the screw collar and movable or sliding jaw so as to cause the nutto be rmly grasped between the jaws as the wrench is turned.

To enable those skilled in the art to fully understand and construct myinvention 1 will proceed to describe it.

A. represents a shank of a screw wrench, the upper part a, of the shankbeing of quadrilateral form, and the lower part b, being of cylindricalform. The cylindrical part b, of the shank A. has a collar B.

fitted loosely on it, said collar having a screw thread c, on its outersurface and a milled thumb wheel C. at its lower end, the wheel C.vbeing attached permanently to the collar B.

At the outer end of the shank A. there is a jaw D. the latter beingattached permanently to the former, and E. is a sliding jaw which istted on the part a, of the shank and allowed to work freely up and downthereon. The lower part of the jaw E. has

\ a nut d, attached, which nut is in line with i A f the portion of thejaw E. that is fitted on the part a, of the shank. Within the `nut d,

the collar B. is fitted and worksas Shown clearly in Fig. 2, and to thelower end of the shank A. the handle F. is attached by a vpivot c, saidpivotpassing Vthrough a metal handle F. by a rod la, which passeslongitu-Y I dinally through the handle and has a nut c',

at its end, and the socket f, has a lip or projection j, at its outerend, as shown clearly in both figures.

The wrench isused las follows: The movable or sliding aw E. is moved onthe upper part a, of the shank by turning the collar B. the screw threadc, and nut d, effecting such result. The nut or other article to beturned or operated upon is grasped between the jaws D. E. by turningcollar B., and the handle F. is then turned in the direction indicatedby the arrow and the lip or projection j, bears against the wheel C.:and forces the colla-r B. outward causing the jaw E. to press morefirmly against the nut. The harder the wrench is turned therefore themore irmly will the nut be grasped, owing to the leverage power of thehandle F. It will be understood that the longitudinal play of the collarB. ou the cylindrical part l), of the shank A. admits of this action ofthe handle upon the sliding jaw. The spring g, throws the handle F. inproper position when the force or power applied to it for turning thewrench is removed.

The jaws D. E. may have concave faces for grasping pipes or cylindricalarticles.

Jaws with parallel faces are employed for operating nuts.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent, is,

The collar B. having a longitudinal play or movement on the cylindricalpart ZJ, of the shank A. provided. with the screw thread c, and ttedinthe nut c, of the sliding jaw E. in connection with the pivoted handleF. arranged in relation with the collar B. to operate as and for thepurpose herein set forth.

CHARLES H. REYNOLDS.

Vitnesses M. M. LIVINGSTON, C. W. CowTAU.

